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Jiufeng National Forest Park ground , through the analysis of the type and content of the atmosphere and plant volatile organic compounds (VOCs) , explore the park in ambient air volatile organic compounds change over time and regions , as well as these changes with visitors activities the correlation ; proposed based on the the tourism ecological environment protection countermeasures , in order to guide the development and management of forest tourism activities to promote the sustainable development of forest tourism . Jiufeng National Forest Park in Beijing divided according to the frequency of human activities , activity areas, buffer zones and inactive areas using TCT-GC/MS method to analyze the composition of volatile organic compounds in the atmosphere in the park , and detected a total of 175 volatile organic compounds , the main components including alkanes , aromatic hydrocarbons , esters , organic acids , aldehydes , ketones , terpenes seven , average relative contents were 48.11% , 15.67% , 17.28 %, 3.13 %, 3.17% , 1.36 %, 1.45% ; most active region detected in the type of volatile organic compounds , a buffer , followed by the non - active region at least, this frequency coincides with each zone of human activities . The three regional ambient air volatile organic compounds , alkanes content is the highest , but also the composition of the volatile organic compounds in the most stable ; aromatic hydrocarbons , esters and acids changes in the larger , seasonal and annual variations are obvious ; aldehydes , ketones, terpenes , a smaller proportion of the total volatile organic compounds . Visitors activities of volatile organic compounds in the ambient air of the park , there is a big impact : visitors up to the month , April , October and November alkanes change is the biggest relative content significantly reduced to 14% , the lowest around up to 55% , the biggest drop in the month ; other six types of compounds are basically the upward trend in a big margin . Thus seen , the atmosphere - plant volatile organic compounds are easily influenced by the surrounding environment , and visitors activities have had a significant impact on the atmosphere - plant volatile organic compounds .
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